Gray pine dwarf mistletoe.

摘要: Gray pine dwarf mistletoe (Arceuthobium occidentale) is an important parasite of gray, or foothill, (Pinus sabiniana) in California. This does not occur outside California and common throughout the range gray foothills Sierra Nevada Mountains Coast Ranges around Central Valley. It occurs from Ventura County north to Siskiyou (Figure 1). Although this primarily on (formerly Digger pine), it also commonly infects Coulter coulteri) knobcone attenuata) where these species are associated with infected pines. Two other pines that may be ponderosa ponderosa) Jeffrey jeffreyi). In addition, Monterey radiata) some native